Traverse motion for yarn winding machines and the like



Nov. 10, 1953 M M WALDROP 2,658,689 l TRAVERSE MOTION FOR YARN WINDING MACHINES AND THE LIKE Filed March 5, 1952 7 Sheets-Sheet l INVENTOR.

MOR/W5 M WLDROP ATTORNEX NOV. 10, 1953 M, M WALDROP 2,658,689

TRAVERSE MOTION FOR YARN WINDING MACHINES AND THE LIKE 7 Sheets-Sheet 2 Filed March 3, 1952 E L O d. Mm Mmm .z M. /MS M .m M a z ,n n M V2M 2 Qu Oz O D .0 O00 OQO GCO OQO OCD OQO @C3 @COO @OCC

Nov. 10, 1953 M. M. WALDROE' TRAVERSE: MOTION FOR YARN WINDING MACHINES AND THE LIKE Filed March 5,' 1952 7 Sheets-Sheet 3 ATTORNEYS Nov. 10, 1953 A M, M, WALDROP 2,658,689

TRAVERSA MTIoN FOR YARN WINDING MACHINES AND THE: LIKE Filed March 3, `195,2y 7 sheets-sheet 4 IN VENTOR A40/YEAS M. WAL DROP ATTORNEYS M. M. WALDROP Nov. 10, 1953 TRAVERSE MOTION FOR YARN WINDING MACHINES AND THE LIKE 7 Sheets-Sheet 5 Filed March 5, 1952 IIIIIIIIIE :il "Il IIIHIU "lil- N II'IIIIIIIIII \I l i www@ @Mmmm a n INVENTORL Manel.: M. wALonoP BY i /fffm J@ A 7 TORNEI/S Nov. 10, 1953 M M. WALDROP 2,658,689

TRAVERSE MOTION FOR YARN WINDING MACHINES AND THE LIKE REY/5M@ Mu e, 5L.,

ATTORNEYS NOV. 10, 1953 M M WA| DROP 2,658,689

TRAVERSE MOTION FOR YARN WINDING MACHINES AND THE LIKE Filed MaIGh 5, 1952 7 Sheets-Sheet 7 Figi? BYM 6 SW ATTORNEYS Patented Nov. 10, :1953

2,658.6@ .TEYERSE MOTION Foa YARN WINPAING Meeuwis AND THE LiKE ing :yarn A.delivery .spi'ndle .to Ia lyarn receiving member` .actuated by .-fricto'nal .contact with a Altake-up roll. The .Iwnding Lfmachines employed .iforithis .purpose .are characteristically arranged .withitheyarn delivery spindles and yarn'eceivingginemlaersr in a.plura1ty ofi vertically spaced ."bankswith commoii'lmeansior Vdrivingthe.spindles and.ior..1xegulatngiactuation Lofthetakelup .rolls .in ,eachibanklthat yarnfis withdrawn vfrom the rotating .spindles `at a rate'tliat' will impart a desireditvvistasthe yarn'is rewundby .in`g..operation, itis common .to train .the yarn `through .guide `means .arranged for .traversing .motion inA relation .to `thetake-.up .rolls so .that the. rewound A yarnds laid .lover a .desired `.portion therewound yarnpackagesibuildlup.

Accordingito the present invention, .atraverse .motion is providedfonaccomplishing .thispurpose which .embodies ..a .uniquely .eo`iripact` arrange# ment, .andmhich incorporatesa particularly sim- ,ple `.and `serviceable f actuating` `connection .with the .yarniguidemeans Also,:the traversemotion .iofithe Vpresentinveltio'ri provideslfor continuous variation ,of the stroke.v of i. the itraversingmoti'on range .of :suoli variation; i

` i .4 1 f These and,` otheri'featurestof .theitraverse motion of the present invention are described.".in @uriner-.detail helomineconnecton withA the ,a-

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ebow 'stand element;

2 vof: l.thelengtlieof ^theiyairn .receiving membersa gppncationiuepeiia, 1952,;serie1 No. avesse @Qleime (Clftf) Fig# .,3 is .a Schemati man, `View inmuebles e lsashwieelavqut arrangement .for the ,rammeding machine shown Vin Fig. 1;

...Fie 4 .a vertical ,setion ,of a .twist .unit ar- 5 ...ranged `fol actuating the take-up rolls from .the

Vv.erifiless `belt `driving ,connection illustrated `in Fig. .3;

Fig'. 5 iis .a `related fragmentary `detai-1 ,illustrat- .ineil arrangementaordirieiothepresentini @im for driviriethe tiaveisemoiionirom the iw t 1.11111; Lin relation i0 the actuetien Qf .the ifa :up 1011s: i is e left end `VieiraQms.1291.1.diegiEi -7` is' related .Plan .View .bf .e traverse faeerlbl? eeifilefl laiterie@ to .the

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aaeciieilal @teil .when Y.saisiirit1=i1-1if ,en LilieV mes-Afa innig. 7; i

trating theiriannrii a'sse'inblif Ais connectedfacording to ythe present 'iii' Yinzien"j fei eigenes 'the traverse hais et carry" thelyarn guides a yanzmvvinding Ainei- 30 chine suchesisiliustreit'ediii Figs.; and 2;-*f'a1id Figr 'affurtlier 'fragmentary side elevation `of .the spindle and 'takeiip roll arrangement of .a yarnwmding machine such asis :illustrated 35 .Referring iiowin detail to the drawings, and 4.iproducedrsofthat:successive layersof yarn Wind- .more .particularly etziiist' to Fig. `1; thereis illus"- trated in Fig. 1, as mentioned abioveyia Apreferred embodiment Dien uptwister or yarnwinding 'inachine the traverse4 motion of, the present 0 l tlmllnllgllt b. .n.SQdL .As showngjhis `yarn ticalstand 'elements 'traverse of the yarn 3 viously mentioned banks of yarn rewinding elements as indicated generally at B, and which are illustrated as comprising a plurality of yarn delivery spindles I6 spaced with interposed separators I'I and arranged in relation to a corresponding plurality of yarn take-up rolls I8 spaced Y above the spindles I6 and adapted for actuating yarn receiving members which may be disposed in finger brackets I9 for peripheral driving contact with these take-up rolls I8, the relative disposition of the yarn receiving members with re- 'spect to the take-up rolls I8 when empty being indicated in Fig. 2 at M, and the yarn receiving member position indicated in broken lines at M illustrating the vertical displacement provided for by the nger brackets I9 as yarnis rewound to fill the yarn receiving members.

Additionally, the banksA B of .operating elements include idler pulleys 20. for trainingan endless belt drive connection 2I past whorl por-Av tions 22 of the spindles I'I, centering eyes 23 disposed above the spindles llforfobtaining and kmechanism spaced from the twist unit 26 on the other side of the end stand I I and mounted as at 4I (compare Figs. ll and 13) on hanger Vrails I6 which also form the mounting means for the previously mentioned spindles I6, the separators I1,

the centering eyes 23, and the traverse bars 24,

as will appear more fully presently.

The housing for the traverse motion assembly 4I suitably comprises a main housing member 46 fitted with `a side cover plate 41 and a top ,cover plate'48, and the traverse motion actuating controlling the ballooning effect of yarn deliv-..

the spindles I6, and traverse bars 24 for carrying yarn guides (not shown)' to'direct the rewinding Also mounted on Vthe framestructure at Vthe end stand element I are vmotor drive units 25 arranged according to the lpresent invention for eachV bank B, Vand from which the endless belt drives 2I-for the spindles I6 run and extend to transmission means orY twist units 26- mounted on the other end stand element I I for controlling the operation Vof the take-up rolls I8 in relationl to the spindles I6, as previously mentioned (compare Fig. 3). Reference is made to copending Vapplication Serial No. 274,561, filed concurrently herewith, for a furtherdetailed disclosure of the arrangement of the frame structure and disposition of the operating 'elements thereon in ,a yarn windingmachine as Vdescribed generally above, and to copending'applications Serial No.

@274562, and Serial No. 274,563, both also filed concurrently herewith; for further disclosures of the arrangement and function of the motordrive units 25 and the twist control units 26."

on the yarn receiving memered from bobbins or yarn carriers C mounted on" The arrangement and function of the traverse motion ofthe present inventionis illustrated in detail in Figs. 4 to 13, inclusive, of the drawings. Y Figs. 4, 5 and 6 illustrate the manner in which 'thetraverse motion is associated with the twist units 26 which are shown as comprising a vertically disposed stub shaft 2l mounted to carry at its lower end an idlerpulley 28 for the endless drive belt 2I and connected at its upper end vthrough a gear train (partially indicated at 29) to drive a jackV shaft 36, all as disclosed more fully in the above noted copending applicationv Serial No.2'74,563. Y

Asshown, the jack shaft 30 is also vertically disposed and is geared latits upper endl through Y a spiral pinion 3| and mating gears 32 to actuate mounting shafts 33 for the previously mentioned take-upV rolls VI8 (compare Figs.` 5V and 6),. The mounting shafts 33 are fitted adjacent this geared driving connection with bearing` sleeves 34 disposed inbearing supports 35, and one of the mounting shaftsY 33 is further fitted with. a take-off gear 36 `which is engaged by an idler gear 3'I'mounted on Van adjustable support bar 38KV to runrin engagement also with a drive gear 39 fired on" an actuatingl'shaft` 40 lfor a traverse soV shaft 40 extends from the twist unit26 interiorly of this housing where its extending end is supported in a bracket lug 49 formed on the main housing member 46 and a worm gear 50 is fixed adjacently thereon. Y. .'Ihere is also disposedv on this extending end portion of the actuating shaft 4I), inl straddling relation't'o'the worm gear 5U, the arm portions 5I of a yoke member 52 formed with a downwardly extending foot portion 53 which is positioned in aguide slot 54 providedV at the bottom vof the traverse motion .housing to prevent lateral movement of the yoke member 52 but allow it Yto slide atrthe arm portions 5I longitudinally :on theV actuatingshaft '40.'

Below the actuating shaft 40,(the yoke Vmeinber 52 is arranged. to carry a transverse shaft 55 on which a worm wheel formed compositely 'of Y Y halves 56 and.5l' is'mounted to run in engagement with the worm'gear 50, these worm wheel halves being formed with a differential number of teeth,l such asllO teeth for Ahalf 56 and V41 teeth for half 5T' on a 21/2 pitch diameter, fora pur- Apose which will appear shortly below.

. The wormwheel half 56 is fixed on the transverse shaft to drive it from the actuating Vshaft 43 and thereby drive a cam member 58 also fixed on'the shaft 55 at the' other sideof the yoke member 52. AThis cam member 58actuates a follower rm'ounted on'a rack element 60which is in turn carried Yonslide block 6I supported on the side cover plate 4'! forthe traverseV motion housing. The'rack element'60 is engaged by a pinion 62 which is fixed to .rotate with a Vspur gear 63 and both of which are carried on amounting pin 64 secured in the main housing member 46. 'I'he spur ygear 63`in` turn runs in Yengagement with a drive gear Y 651ixed on a drives'haft 66 through which the traverse bars 24 are operated as is vdescribedin'detailfurther below,'it Y being suiiicient to'note here Vthat a biasing force VYis always present fat' the drive shaft-66 in opposition to the workingdirection of the cam mem- Vber 5 3V so that the follower `59is made 'to follow the cam meinberion` its 'return stroke by this bias. The other Vworin wheel`half51 is' arranged'to Y rotate on the transverse shaft 55 and'hasY pinned thereto as at 6l Yan eccentric v678 which is lilviewiseV arranged. to rtaiei 0.1.1 the Shaft 5.5, and iS disposed internally of a reactioncollar IilwhichY is rotatably disposed .a circular recess. 0n the' main housing ,Inember46;` This :reaction y,collar is for-med with an elongated opening ltoreceive the screw 13 also. disposed'on the-main housinggmember 46; keyedata grooved portion T4 bya screw- `T" against longitudinal movement, y and againstrotatin,'too`, when desired;

The effect of this arrangement' of the reaction collants is to allow variation as desired for the action of eccentric t8.; `lllbenthe reactioncollar 6,8 is disposed so that its elongated opening is arranged vertically, itwill beseen vthat the eccentric 68 will apply its full 'throw'in causing the yoke mem'ber 452 to slide back and forth on the actuating shaft 40 and thereby supplement the action of the cam member 58 in actuating the 'traverse motion. 'On the other hand, if the re- -action collar 69 is turned by the adjusting screw 13 so that the elongated opening 10 is angled from vertical, part of the action of the eccentric S8 will Ibe lost in the elongated opening 10 and the effect of the eccentric 68 on the yoke member 52 will be lessened accordingly, so that the adjusting screw 'I3 -may be manipulated to regulate the extent of supplementary action desired by the eccentric 68.

It should also be noted that because the cam member y58 is driven 4from the worm wheel half 5B, While the eccentric 68 is driven from the other worm lwheel half 51, there will .be a continuous phase variation imposed on the cam 58 and eccentric B8 as a result of the differential tooth arrangement employed for the worm wheel halves 56 and 51. The effect of this arrangement is to provide a continuous variation of the stroke imparted to the traverse motion by the combined action of the cam 58 and eccentric 68 and thereby avoid the delivery at the take-up rolls I8 of the twisted yarn for rewinding in successive layers with the windings laid directly upon one another, as previously mentioned.

The manner in which the drive shaft 66 from the traverse motion assembly 4l is connected to operate the traverse bars 24 is illustrated in Figs. 11 and 12, the drive shaft -Gbeing sh-own extending on both sides of the traverse motion assembly 4I to carry pulley members 16 from which flexible tapes 1,1', formed of metal or the like, are extended to -anchor brackets 'I8 on the traverse bars 24. Operation of the traverse motion assembly 4| on a working stroke results in rotating the drive shaft 6B to cause the pulley members I6 to wind up the tapes 'I1 and thereby move the traverse .bars to the left as seen in Fig. 12. The bias by which the traverse bars 24 are moved in the other direction during each return strokeV of the traverse motion assembly 4| is obtained from springs as at 19 extended from further anchor brackets 80 on the traverse bars 2-4 to 'any convenient anchor point on the frame structure for `the yarn winding machine asindicated in Fig. 12

or 4lotherwise except as denedin the appended `claims.

`engaging said eccentric. and thereby actuating `sliding movement of said carrying means for isf , lclaimi LA traverse motion fora yarnf winding machineysaid traverse` motion comprising an actuating cam, slidably mounted meanslcarrying said` cam for rotation aboutan axis transverse to thesliding direction of` said means, an eccentric; 'carried fOr rotation ia-bout a. common axis withrsaid cam,means .for rotating` said cam and eccentric at differential speeds` for continuous phase variation, ,and a stationary reaction means supplementing the action of. said cam.

2. A traverse motion for a yarn winding machine, said traversetmotion comprising a driven shaft, a yoke member slidably disposed'on saidLsl-iaft, `a iirsti gearyelement carried 'by said yoke member for rotation by said driven shaft about an axis transverse thereto, a traverse actuating cam disposed for rotation on a common axis with said first gear element, a second gear element carried by said yoke memberl for rotation by said driven shaft on a common axis with but at a differential speed in relation to said first gear element, an eccentric disposed for rotation on a common axis with said second gear element, and a stationary reaction means engaging said eccentric and thereby imparting a sliding motion to said yoke member on said driven shaft, whereby the action of said cam is supplemented by said eccentric as a result of the sliding motion of said yoke member and a continuous phase variation is imposed on said cam and eccentric as a result of the differential speeds at which said first and second gear elements are rotated by said driven shaft.

3. A traverse motion for a yarn Winding machine, said traverse motion comprising a driven shaft, a yoke member slidably disposed on said shaft, a rst gear element carried by said yoke member for rotation by said driven shaft, a. traverse actuating cam disposed for rotation about a common axis with said rst gear element, a second gear element carried by said yoke member for rotation about said common axis by said driven shaft at a differential speed in relation to said first gear element, an eccentric disposed for rotation about said common axis with. said sec` ond gear element, stationary reaction means for engaging said eccentric and thereby imparting a sliding motion to said yoke member on said driven shaft, said eccentric being engaged by said reaction means in an elongated slot having a Width corresponding to the diameter of said eccentric, and adjustable means for selectively positioning said reaction means and thereby adjusting the longitudinal axis of said slot in relation to the direction of sliding motion of said yoke eccentric.

4. In a yarn winding machine, the combination with a plurality ofcommonly driven yarn takeup rolls and a corresponding plurality of yarn guide means arranged on a common mounting for traversing motion in relation to said take-up rolls, of a traverse motion comprising a pulley `member aligned with said common mounting for rotation on an axis transverse thereto, an extending tape element connected from said common mounting to said pulley member, a traverse cam and an eccentric mounted for rotation about a common axis parallel to the axis of said pulley member and for sliding movement transverse thereto in a direction aligned with the traversing motion of said common mounting, said traverse of said traverse cam.

Cani and eccentric being driven at differential Y vspeeds from a common source with said take-up rolls, means following said traverse cam for ro- `variationby virtue of said differential speeds, and

means biasing said common guide means mounting for movement to unwind said tape element from said pulley member during the return stroke MORRIS. M. WALDROP.

A i References oitea inthe fue of this patent UNITED STATES PATENTS Number Number Name Date -AtWood Nov. 29, 1870 Jessen Mar. 26, 1929 Lubberhuizen Mar. 17, 1936 Anderson Dec. 8, 1942 FOREIGN PATENTS country Date Great Britain May 20', 1898 VGreat Britain Oct. 12, 1909 VGreat Britain Apr. V19, 1934 

